package com.ihome.android.http.upload;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.UUID;

import android.text.TextUtils;

import com.ihome.android.analytic.JsonAnalytic;
import com.ihome.android.market2.info.BasicInfo;
import com.ihome.android.util.exception.ITVException;
import com.ihome.android.util.log.LogUtil;

/**
 * 
 * 上传工具类
 */
public class UploadUtil {
	private static final String	TAG			= "uploadFile";
	private static final int	TIME_OUT	= 10 * 1000;	//超时时间
	private static final String	CHARSET		= "utf-8";		//设置编码

	/**
	 * android上传文件到服务器
	 * 
	 * @param file
	 *            需要上传的文件
	 * @param requestURL
	 *            请求的rul
	 * @return 返回响应的内容
	 */
	public boolean uploadFile(String requestURL, String filePath) {
		String BOUNDARY = UUID.randomUUID().toString(); //边界标识   随机生成
		String PREFIX = "--", LINE_END = "\r\n";
		String CONTENT_TYPE = "multipart/form-data"; //内容类型

		try {
			URL url = new URL(requestURL);
			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
			conn.setReadTimeout(TIME_OUT);
			conn.setConnectTimeout(TIME_OUT);
			conn.setDoInput(true); //允许输入流
			conn.setDoOutput(true); //允许输出流
			conn.setUseCaches(false); //不允许使用缓存
			conn.setRequestMethod("POST"); //请求方式
			conn.setRequestProperty("Charset", CHARSET); //设置编码
			conn.setRequestProperty("connection", "keep-alive");
			conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);

			if (filePath != null) {
				File file = new File(filePath);
				/**
				 * 当文件不为空，把文件包装并且上传
				 */
				DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
				StringBuffer sb = new StringBuffer();
				sb.append(PREFIX);
				sb.append(BOUNDARY);
				sb.append(LINE_END);
				/**
				 * 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件
				 * filename是文件的名字，包含后缀名的 比如:abc.png
				 */

				sb.append("Content-Disposition: form-data; name=\"img\"; filename=\"" + file.getName() + "\"" + LINE_END);
				sb.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINE_END);
				sb.append(LINE_END);
				dos.write(sb.toString().getBytes());
				InputStream is = new FileInputStream(file);
				byte[] bytes = new byte[1024];
				int len = 0;
				while ((len = is.read(bytes)) != -1) {
					dos.write(bytes, 0, len);
				}
				is.close();
				dos.write(LINE_END.getBytes());
				byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();
				dos.write(end_data);
				dos.flush();
				/**
				 * 获取响应码 200=成功 当响应成功，获取响应的流
				 */
				int statusCode = conn.getResponseCode();
				LogUtil.v(TAG ,  "response code:" + statusCode);
				if (statusCode == 200) {
					LogUtil.i(TAG , "request success");
					InputStream input = conn.getInputStream();
					StringBuffer sb1 = new StringBuffer();
					int ss;
					while ((ss = input.read()) != -1) {
						sb1.append((char) ss);
					}
					String response = sb1.toString();
					
					if (!TextUtils.isEmpty(response)) {
						LogUtil.v(TAG , "response : " + response);
						try {
							BasicInfo basicInfo = JsonAnalytic.getInstance().analyseSimpleResult(response);
							if(basicInfo.getCode()!=0){
								return false;
							}
							return true;
						} catch (ITVException e) {
							e.printStackTrace();
							return false;
						}
					}
				}
				else {
					LogUtil.e(TAG, "request error");
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}
}